Largest British population, US counties · 2020
US counties ranked by the number of residents who are British ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Los Angeles County, California leads at 42,899. 2,966 counties qualify in total. California carries 6 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest british population?
Los Angeles County, California ranks #1 with 42,899 (2020 American Community Survey).
What are the top 5 counties by british population?
Los Angeles County, California, Maricopa County, Arizona, Salt Lake County, Utah, King County, Washington, San Diego County, California.
How many counties are in this ranking?
2,966 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.
How is british population measured?
Number of residents who are British ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2020).